class Acbaker::Processors::Contain

Public Instance Methods

defaults() click to toggle source
# File lib/acbaker/processors/contain.rb, line 4
def defaults
  { "background-color" => "#FFFFFF", "gravity" => "Center" }
end
run(image, image_spec, width = nil, height = nil) click to toggle source
# File lib/acbaker/processors/contain.rb, line 8
def run(image, image_spec, width = nil, height = nil)
  # resize image
  image.change_geometry("#{width}x#{height}") do |px, py, i|
    image.resize!(px, py)
  end

  # crop image
  canvas = Magick::Image.new(width, height)
  if @options['background-color'] == :transparent
    canvas = canvas.matte_floodfill(1, 1)
  else
    canvas = canvas.color_floodfill(1, 1, Magick::Pixel.from_color(@options['background-color']))
  end

  # place image
  gravity_string = "Magick::#{@options['gravity']}Gravity"
  gravity = Object.const_get(gravity_string)
  canvas.composite(image, gravity, Magick::OverCompositeOp)
end